1) is
2) is
3) reaches
4) boils
5) melts
6) flows
7) take place
8) works
9) travels
10) speaks
11) goes
12) arrive
13) go
14) drink
15) does
16) don't often sing
17) doesn't play
18) don't usually watch
19) Do they spend
20) Does he always wear
21) gets up
22) has
23) takes, brushes, combs
24) puts
25) leaves, locks
26) goes, waits
27) arrives, gets on, goes
28) arrives
29) starts
30) begins
31) is
32) leaves
33) ends
34) comes
35) does the exhibition open
36) is
37) does the zoo close
38) like
39) hates
40) prefers
41) want
42) doesn't understand
43) don't believe
44) don't know
45) don't think
46) does it mean
47) do you hear
48) go
49) see, mean
50) love
51) looks
52) doesn't make
53) don't understand
54) don't care
55) do you think
56) do you speak
57) do you believe